ive got 195/50/15 almera gti alloys and they catch the dampers occasionally when going round corners with people in the back and occasionally rub on full lock. i am investing on spacers though
On a standard track micra anything more than a 15x7.0 with a 195/45 profile tyre on is going to limit the drive. Can't really go wrong with 14" or 15" rims unless you go for an incorrect offset :0)